The Catechism in Questions & Answers

184. By what power did Jesus Christ resurrect?

The resurrection of Jesus Christ is an act of the triune God:

On the one hand, the power of God, the Father, is revealed in that He raised Jesus from the dead: “The God of our fathers raised up Jesus whom you murdered by hanging on a tree” (Acts 5: 30).
On the other hand, the words of God, the Son, were fulfilled: “I have power to lay it [My life] down, and I have power to take it again” (John 10: 18).
Finally, the activity of God, the Holy Spirit, is also attested: “But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you” (Romans 8: 11).

The power of God over death is shown by the fact that Jesus Christ resurrected from the dead.